题解 | #记负均正#
记负均正
https://www.nowcoder.com/practice/6abde6ffcc354ea1a8333836bd6876b8
#include <stdio.h>
int main() {
int a = 0;
int b = 0;
int m;
double ave = 0.0;
int n;
scanf("%d", &n);
while (n--) { // 注意 while 处理多个 case
scanf("%d", &m);
if (m > 0){
ave += m;
a++;
}else if (m < 0){
b++;
}
}
if (a != 0){
ave /= a;
}
printf("%d %.01lf", b, ave);
return 0;
}
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